Home / 7,799.06-11,698.61-3,121.18

Finding the Fourth Proportional to 7,799.06, 11,698.61 and 3,121.18

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Solution

The fourth proportional to 7,799.06, 11,698.61 and 3,121.18 is: 4,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.06 : 11,698.61 = 3,121.18 : x
  2. Step 2: Convert to fraction form
    7,799.06/11,698.61 = 3,121.18/x
  3. Step 3: Cross multiply
    7,799.06x = 11,698.61 × 3,121.18
  4. Step 4: Simplify right side
    7,799.06x = 36,513,422.71
  5. Step 5: Solve for x
    x = 36,513,422.71/7,799.06
  6. Step 6: Final answer
    x = 4,681.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.